How data matter for winning a tennis match?

Valtteri Bottas won the Abu Dhabi Grand Prix round of the Formula One season, followed closely by four-time world champions Lewis Hamilton and Sebastian Vettel.
What coaches say and like.

What coaches say and like

Launching a new product is hard. You have to do things like fine tune its design, deal with manufacturing and build the damn thing, handle promotion ...

Smartphone Apps for Tennis Notation

The tennis notation apps have become more and more sophisticated as the modern smartphones and tablets can process a lot of data very quickly.